Merge branch 'python' into ramki_flask
[#64349062] Changes to the load method of GraphCollection

Now Load method object preserves the unpickled data from the file.
Merge branch 'ramki_flask' into python
[#64349062] removed the debug lines.
Merge branch 'ramki_feb2' into python
Merge branch 'erick' into python
Revert "Merge branch 'erick' into python"

This reverts commit f3996247993ca41df4200e51ee3c6e7c49704c84, reversing
changes made to 09031839e2856ef4e9f88f0538c0e3ffe29ea5f2.
Revert "Revert "Merge branch 'erick' into python""

This reverts commit ff9abd94daa4f3b8e9d6a8823912c3c8ed223f4f.
[#64958302] changes in data_test.py

changes made to reflect today's code changes and to correct these
errors.
Merge branch 'ramki_feb2' into python
[#60463750] not done.

getting the following error even though UnboundLocalError is handled in
the code.

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/ramki/tethne/tethne/readers/wos.py", line 576, in
from_dir
    wos_list += parse(path + "/" + f)
  File "/Users/ramki/tethne/tethne/readers/wos.py", line 195, in parse
    wos_dict[field_tag] = str(line[3:])
UnboundLocalError: local variable 'wos_dict' referenced before
assignment
Merge branch 'ramki_#60463750' into python
Merge branch 'erick' into python
Merge branch 'erick' into python
Merge branch 'erick' into python
Merge branch 'python' into ramki_#60463750
[#60463750] tests for from_dir function in wos.py over.
Merge branch 'ramki_#60463750' into python
Merge branch 'python' into erick

Conflicts:
	tethne/data.py
resolved conflict